Robinhood
Investing is intimidating for newcomers, especially if you don't have someone to help hold your hand at the beginning. Robinhood was engineered for the casual investor. You can learn to invest in the stock market as you build out your portfolio. This app's strength is zero-commission trading, so if you're hesitant and want to move just a little money, then this is a great entry point.
Free for iOS and Android
YNAB
Starting from scratch? Then you might want this app—the acronym stands for You Need a Budget and the goal is to help you get out of debt and better prepare for those unexpected expenses that tend to derail your financial security. For about half the cost of a Netflix subscription, this app will analyze your spending and help you improve your financial literacy by honing in on where you're burning through the most cash. The app also offers live workshops from industry experts to help improve your understanding of financial basics.
Free for iOS and Android